Weighing device



y Feb. 9, 192e. 1,572,658

W. LANGERAK WEIGHING DEVICE Filed May 29, 1924 2 Sheets-Sheet 1 36 @MM/fn@ Fd. 9. 192s.

1,572,658 w. LANGl-:RAK

WEIGHING DEVICE Filed May 29, 1924 2 Sheets-Sheet 2 Patented Feb. 9, 1926.

UNFED STATES PATENT OFFICE.

VGGEl-fl LAGERAK, OF PELLA, OWA, ASSIGNOR I @NE-HALF 'E0 MEYER LANGERAK, Ol PELLA, CfWA.

W'EIGHIEG DEVCE.

Application filed May 29,

To ZZ LU/7mm t 'may conce/r11:

Vlie' it known that l, llfioenii'r Landman, a citizen ci the United States, residing at Pella, in the county otlilarion and State ot lowa, have invented a certain new and usetnl llileighing Device, ol which the following; is specilication.

'liie ohject ot my invention is to provide a weighing device ot simple, dnrahl'e and comparatively inexpensive construction.

More particularly, my invention rciates to -ighing device having a rotor therein o 7ined with a movable bottoni so that the .ripa-city ot the pocket whicii receives the commodity to be weighed can he increased antonnitically.

titill a. further object is to provide a weighing device having a rotor provided with a Horrible 1oottoin tor forming the rotor into a plurality et pockets, the flexible element having leeseness so that it can move to position 'where it will overlap the unused pocket for permitting the capacity of the pocket being tilled to he increased.

Still a further object is to provide a weigher rotor having' a plurality of poclets therein n'ovided with flexible bottoms niovable to position where portions of the poel;- ets overlap each other.`

Still a further object is to provide a rotor having` a bottom therein mounted tor moveinent across the interior th-ereoi for melting each pocket ot the rotor, when being filled, to have a capacity greater than the number et' pockets divided into the area of the rotor its-elf.

eftill a. further object is to provide an auxiliary poclet or pockets on the rotor tor catchingv the 4grain dering` the time the rotor is moved Yfrom one filling position to another illing position. y

My present invention, is an improvement upon my co-pending application tor patent tiled April` 17, 1924, Serial No. 707,095 on a grain weigher.

llfith these and other objects in view, my invention consists in the construction, arrangement and combination of the various parts of my device, where-by the objects contemplated are attained, as hereinafter more ully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Figure 1 is a front elevation ot my iin- Figure 6 is a detail, sectional view taken on line 6 6 of Figure 1 showing` a portion of the weigher traine and the mounting ot' the weigher rotor; and

Figure is a central, sectional view through a slightly different forni of weigher rotor.

ln t accoinpanying` drawings l have used the reference. numeral 10 to indicate generally a. casingin which my automatic iing' device is mounted. The casing 10 may he provided with a hinged cover ineinher, not shown.

liinge connections 11 are formed on the casing 10 whereby the cover member may he connected thereto.

in inlet pipe 12 leads from the threshii'ig,` machine to the casing 10 and discharges the grain from the threshing machine into the casing' and weigher, as will hereinafter he more fully explained.

'lhe lower part of the casing 10 is formed with an inclined betteln at the lower end of which is an ope-nino for permitting the discharge pipe 13 to ne coniinunicated therewith.

My improved weighing` device includes a freine 1a securely mounted in the casing 10. A weigher traine 15 is pivotally supportee` on the trame 111 on the short shafts 16. The shafts 16 extend through roller bearings 17.

The weigher traine is provided with a suitable scale element 18 having a sliding scale member 19 thereon.

A counter weight 2O is also mounted upon the weigher traine 1li.

The parts just described are all clearly shown in my 3o-pending application herein referred to.

A bracket 21 extends from the frame 14- and has a pair ot stop pins 22 thereon which are space-d apart and receive a portion ot the weigh-ei` traine 15 therebetween for liiniting the amount ot pivotal movement oit the weigher frame.

Mounted upon the weigher frame by means of a shaft 23 is a iifeigher rotor A. The weigher frame 15 is provided with roller bearings 241- through which the shaft 23 extends.

From the construction of the parts just described, it will be seen that the weigher frame 15 is mounted for rotation on the short shafts 1G in the trame 14 and that the weighe'r rotor A is mounted t'or rotation on the shaft 23 mounted on the weigher trame 15. l

The axis of the weigher trame and the axis of the weigher rotor are spaced somewhat apart as shown in Figure 1 0i the drawings.

The weigher rotor A consists ot a pair of side walls 25, which are spaced apart and fixed to the shaft 23.

A pair ot angle irons 2G extend between the two side walls 25 and connect them together.

Angle irons 27 are also mounted on the side walls 25 and serve as stops for the movable bottom members 28. The bottom members 28 are hinged at their outer ends by means of the loops 29 to the rotor A.

The lower or inner ends of the bottom members 28 are adapted to strike against the outer edges of the angle irons 26, as clearly shown in Figure 2 ot the drawings.

The movable bottom members 28 cause the rotor A to be divided into two pockets B and C. The pocket B is shown in Figure 2 in position to be illed with grain.

It will be noted that there are two sets ot angle irons 2T secured to the side walls 26, the purpose of which will be hereinafter more fully set forth.

The incoming grain through the inlet pipe or chute 12 passes into the pocket B and is retained therein by the lower angle iron 2G and the two movable bottoms 28. Villien the pocket B in the rotor A becomes lled and the grain reaches a predetermined weight, then the rotor will rotate in the direction indicated by the arrow 30, will hereinafter be more fully set forth.

The pocket C will then be brought to position wheie it will be below the inlet pipe 12, and in that case, the movable bottom members 28 will swing on their hinges 29 to position where they will rest against the other set of angle iron stops 27, and when in this position the pocket C will then be increased in size so that its size will be the same as that or' the original pocket B and original pocket B will be decreased in size so that it will be the same as original pocket C.

The movable bottom members 28 move across the interior of the rotor tor increasing the capacity ot the pocket to be filled,

whereby the maximum filling capacity is obtained from a con'iparativcly small rotor. The movable bottom members 28 swing by gravity as the rotor A is rotated.

It will therefore be clearly noted that the pockets overlap each other and that the pocket being tilled is comparatively large compared to the pocket that is being emptied.

A number or auxiliary pockets 31 are termed on the sides ot the rotor A and catch the grain as the rotor moves from one position to another of its positions.

The pockets 31, catch the grain that falls from the elevator spout while the rotor is turning from one weighing position to the next. The grain thus caught is, or' course, weighed with the grain on the inside of the rotor. The provision of the pockets 31 eliminates the necessity for using amechanical tlapper or valve or closure in the elevator spout, which might otherwise be necessary -tor stopping the flow of grain between weighing operations.

I will now describe in detail, the operation of the weigher which limits movement of the rotor A.

A plate 82 is mounted on the frame 1/1 and is provided with a pair of spaced lugs and 34.

A stop 35 is mounted on the rotor A, which engages the upper plate 35 tor retaining it in iilling position.

In order to prevent the rotor from any possible backward rotation, I provide notches 36 in the rotor A, which are engaged by a locking pawl 37 pivotally mounted on the frame 14.

lVhen the pocket, being filled, reaches a predetermined amount, the weigher frame swings to a position shown in dotted lines in Figure 1 oit the drawings, thereby moving the stop roller 35 downwardly to position where it clears the lower edge et the stop 33, and thereafter it. is permitted to rotate to emptying position.

Another stop roller 35 is then brought to position where it engages the stop for positioning another ot' the pockets to be secured.

It will be understood that the weigher frame 15 will swing back to its solid line position, as shown in Figure 1, as soon as the contents of the rotor is emptied and to insure against any possible continued rotation of the weigher rotor. In case the weigher frame does not properly operate, I employ the stop Bil, which would be engaged by the stop roller 35.

The locking pawl 37 in that case would drop into the t'oiwirard notch 3G.

It may be here mentioned that the stop 3l is only intended as a safety in case the weigher trame did not properly function for insuring the rotor to be raised sufiiciently to bring the stop roller 35 into engagement with the stop 33.

When the Weigher rotor bee-eines filled, to its predetermined ainount, then of course, the Weigher frame will swing causing the stop roller 35 to he inoved downwardly until clearsk its stop In Figures 4 and 5 oil the have shown in place of hinged a flexible bottom 38, Which is its sides and ends by ineans of a fr ne 39, which is fined to the side Walls 25 of th rotor A. ln this particular case, short shaft.. ll are used in place of the single shaft The flexible bottoni 38 is of such loosene s as to permit it to sag when one pocket is being filled so that it enter-.ds ii yo the portion of the other pocket which is in empty position.

In Figure of the drawings, l have shown in dotted lines the position oit' th bottoni 38 When the rotor A has been 'ln-ough drawings, bottonis 2&3, retained on noved 180 degrees from its full line position there shown.

The operation of the rotor in this case being identical with the rotor fr, just described.

Side auxiliary pockets 3l are also used With the rotor having the flexible bottom therein.

lt will be noted that the flexible boltoi 38 inoves across the interior of the "t" for increasing the capacity of the pocket to be filled.

The side Walls of the rotor n. may be reinforced With a ring il secured to the outer edge of the Walls 25.

In Figure 7 of the drawings, l have sli-own a flexible bottoni for dividing the rotor A into three conipzutinents instead of ivo.

The auxiliary side pockets 3l are also used in this form of rotor.

The flexible bottoni l2 will assn the position shown in solid lines shown in lligure 7, when one of its pockets is being filled and Will assume the position shown in dotted lines when the next adjacent pocket is being filled.

It will, therefore, be seen that the pockets overlap each other and that the poclret being filled has a greater capacity than the pockets being einptied.

I have shown a catch Wall il?) on the Weigher frame 15, which will prevent any grain from splashing if' it is discharged through the pipe 12 into the rotor il.

In case any` grain does strike against the catch Wall, 43, it Will be discharged into one of the auxiliary side pockets 3l, and reinain therein until the rotor A rotates a sufficient distance to bring another pocket to filling position, at which tinic the auxiliary pocket Will be emptied.

lVhen three pockets are used in the rotor A, then it revolves only 120 degrees for bringing the nest adjacent pocket to filling position.

The advantage of inv iveigher rotor resides in the fact that l ain able to use a rotor of comparatively sniall size, and yet get pockets, which when in filling position will give ine a maxiinuin capacity.

Sonie changes niay bevn'iade in the con struction and arrangement of the various parts of iny invention, without reparting from the real spirit a pu pose of niy invention and it is iny intention to cover by iny elaiins, any modified forms of str or use of mechanical equivalents, which r 2 be reasonably includet 7ithiu their scope.

elaiin as niy invention:

l. A .veigher rotor having a pluralitf.' of pockets therein, a flexible eier-nent foriuthe bottoni of said pockets whereby the flexible elenient inav when the rotor is in one position partiall entend into the space previously occupied by another oi the poel;- ets and when in another position ext el into the space of a different pocket.

2. An autoinatic u'eigher comprising a supporting` traine, Weighcr ran'ie mounted thereon and a Weigher rotor inountcd in said weigher franie, said weigher rotor having a plurality of pockets therein provided with flexible bottonis, niovable to position Where portions of the pockets lie in the space previously occupied by another poel t.

3. A Weigher rotor comprising a pair of spaced side Walls, a flexible elenient secured to said side Walls for dividing the rotor into poc.{ets, the dexible elcrnent forming the bottom of said pockets, said flexible clement iaving looseness so as to permit it to .sag as and for the purposes stated.

fr. A Weigher rotor con'iprising a pai of spaced side Walls, a flexible @lenient secured to said side Walls for dividing; the rotor into pockets, one surface of the fieri lc clenient serving as the bottoni for one poclict and the other surface serving as the bottin for the other pocket, said flexible eleinent having looseness so as to perinit it to sag when the rotor is in either of its positions Where it will extend into the space previously occupied by the other pocket for increasing the capacity of the pockets.

5. ln a Weighing device a rotor having side Walls, a. bottoni therein for dividing the rotor into pockets, said bottoni being mounted for movement across the interior of the rotor for increasing the capacity of the pocket being filled.

6. ln a Weighing device a rotor having` casing Walls, a pocket 'forming bottoni in said rotor, adapted to inove across the interior for giving niaxinunn capacity to the pocket being filled and for forniing a pocket on both sides.

7. ln a Weighing device, a rotor having casing Walls, a bottom therein for forming a pocket secured to the casing Walls at its edges and having its central portion movable across the interior ot the rotor, Whereby the pocket ivill have maximum capacity when being illed.

8. An automatic weighe comprising a` supporting trame, a Weigher frame mounted thereon and a 'Weigher rotor mounted in said n'eigher trame, said Weigher rotor having a plurality of pockets there-in provided with a bottom movable to position where portions of the pockets lie in the space previously occupied by another poc iet.

9. n'a weighing device a rotor having side walls, a movable bottom therein for dividing the rotor into pockets, said bottom being mounted for movement across the interior ofthe rotor for increasing the capacity ot the pocket being filled and end pockets on said rotor Yfor use during` movement of the rotor :tro-m one position to another of its positions.

10. In a Weighing device a rotor having side walls, a movable hinged bottom therein 'for dividing the rotor into-pockets, said bottom beingmounted 'or movement across the interior ot the rotor for increasing the capacity of the pocket being filled and end pockets on said rotor for use during movement of the rotor from one position to another of its positions.

1l. In a weighing device a rotor having side Walls, a iexible bottom therein 'tor dividing the rotor into pockets, said bottom being mounted for movement across the interior ot' the rotor tor increasing the capacity of the pocket being lled and end pockets on said rotor tor use during move-. ment oi the rotor from one position to another ot its positions.

1Q, In an automatic weieher, a casing, a .veigher rotor therein having main grain receiving pockets, said rotor having auxiliary pockets for receiving grain during the rotary movement of the rotor.

123. In an automatic weigher, a casing7 a rotatably mounted grain receiving and weighing device therein, having on its exterior pockets to receive grain during the rotation ol the rotatably mounted men'iber.

lei. n an automatic weigher, a casing, a weigher rotor therein having main grain receiving Dockets, said rotor having auxiliary pockets for receiving grain during the rotary movement oi the rotor and means adjacent the rotor for dctlecting grain into the auxiliary pockets.

15. In an automatic weigher, a casing7 a iveigher rotor therein having` main grain receiving pockets, said rotor having auxiliary pockets for receiving grain during the rotary movement oi'f the rotor and means for holding the Weigher rotor against rotary movement until the v: igher rotor is lilled to a predetermined amount.

16. In an automatic Weigher, a casing, a weieher rotor therein having main grain receiving pockets, said rotor having auxiliary pockets for receiving grain during the rotary movement oi the rotor and means ior holding the weigher rotor against rotary movement until the Weigher rotor is filled to a predetermined amount, said rotor being mounted :tor vertical movement and said means comprising a stop on the rotor and fixed stops for coacting with the lirst stop in either the raised or lowered position ot the rotor.

1T. In an automatic weigher, a casi' g, a vveigher rotor thereinA having main grain reg ceiving pockets, said rotor having auxiliary pockets for receiving grain during the rotary movement ot the rotor and means ior holding` the Weigher rotor against rotary movement until the xveigher rotor is lille/d to a predetermined amount, said rotor being mounted for 'vertical movement and said means comprising stop on the rotor and fixed stops for coacting with the first stop in either the raised or lou'ered position ot the rotor, said fixed stops being spaced apart and one above the other and in advance thereo'tE so that the iirst stop passes between said fixed stops.

Dos Moines7 Iowa, May 23, 1921.

VIGGERT LANGERAK. 

